My 2020 Silverado duramax was at the dealer for recall , next day check engine light came on and rear wheels got locked up , the dealer installed new transmission valve , next day same problem check engine light and rear wheels locked up again, now the dealer said is something to be with a speed sensor and I have to paid for it , my truck was perfectly working before all this recall thing, its been 3 weeks now with no transportation, because GM and Chevy dealer dont want to respond or fix this problem with the transmission valve and transmission control module software that was installed My truck was all good before this matter